I just have one free day in hand before I get back to studies, and i really want to spend it well. 

So tell me, if I play through Bioshock quickly, like, not do much exploration and not die much and all, will I be able to complete it in a day?
 

Probably.

Depends on how long you want to sit down and play it for, but easily yes. You can easily beat it I believe in under 10 hours. Maybe around 8.

Probably, I played through it twice and S ranked it in roughly 3ish days, it is a short game.

Its gonna take you most of the day but if you can just sit down and not stop, sure 1 day for that game isn't anything crazy.

Definitley. Me and a friend burnt straight through it in about 6 hours one night (although that was because i knew what i was doing).

" I just have one free day in hand before I get back to studies, and i really want to spend it well."
 
You have one free day? Then go out with some friends and have some fun. Play Bioshock on your breaks...

Skip it. Get Lego Star Wars and beat it in 3 hours instead.
 
/sarcasm

If you take like 10-12 hours or more to try to finish it. Honestly that game goes on forever.

That would really, REALLY suck bad if you tried to beat it in one day. Maybe you could? But you wouldn't get any fun out of it. It would be like playing Fallout 3, but not exploring or doing any side missions.

You probably can but I would not recommend it.  You really want the environment and story to sink in so rushing through it would not be a good idea.

I could in less than 24 hours, yes.  
So I think you can too

Yes you can, even if you do explore a bit, and such. You can still get a fair amount of the audio logs.

Yes, you can, not like the combat in that game is terribly hard.  And also, infinite respawns, unless you're looking for achievements.

You would definetly have to put in some serious hours...  For me and my life there would be no way I would be able to game that long...  The 2nd I turn off the xbox I would be divorced if I tried lol
 
But really I think the game deserves a more in dept play through.  It just sounds like your trying to rush through it because the 2nd game is coming out.

That's not how you play Bioshock. That's like can I eat this steak in 30 seconds.