At first I thought it would be Inzaghi, because he used to be a great goal poacher. After some searching I found out that the Coppa Italia all time goal scorer is Alessandro Altobelli. Thank you Italian Wikipedia
By the time we are finished guessing we'll name out all the teams. Lol Anyway I think I actually heard it this past weekend but I wasn't paying attention to it. I completely tuned out
Since there has been no confirmation or denial to my answer after a few days, I decided to use my favourite search engine and those two players are Claudio Caniggia in the 2002 WC and Leandro Cufre in the 2006 WC