How long does it take for a bank to get back with you regarding an offer you put in on a house?

My fiance and I put an offer in on a house over the weekend and the suspense has been killing us on whether or not they accepted our offer. It was a foreclosed home, and it looks as though they took the posting off the site it was once previously listed. So it appears as though they have possibly accepted AN offer, just not sure it was ours. Our Realtor seems optimistic that our offer was solid and we are just waiting to hear something at this point…

I live in Ohio; if that makes any difference in the matter. Anyone here knowledgeable about this process that can maybe put my mind at ease? Thanks in advance!