How big of a hutch does the average rabbit need?

I am considering getting a pet bunny. I have one from a breeder all lined up should I go through with it. I am wondering what the best kind of hutch for her is? How big should it be? What should line it? Should she have access to get out of the hutch?

Thanks for answering. I really want to provide the best life I can for the little girl. She's just a baby now but she's black and white and will grow to be beautiful, I'm sure. I want her to be very happy.