Ferrara, like most Italian Universities, doesn't have a "campus" in the American sense of the word.
There are some rooms available in a dormitory managed by the Region, but the Faculty doesn't provide accomodation for students.
As a matter of fact, however, no exchange student has ever met with serious problems in this respect. Ferrara is a quiet, peaceful, mid-size town in the Italian countryside, and there's always a great number of flats available for rent. Many prospective tenants advertise their offers in the Faculty premises.
Please note: the Faculty is in no way responsible for such offers.