The setting is inside Jack's house, the path to the market to sell the cow, and inside the giants castle. Your Welcome Man Hope it Helped
In the castle
The story appears to be English, so most likely England. Variants of the story may set it in other locations, however.
Yes jack was a hero at the end of the story
welshHows about the Giants comment: "Fee Fi Fo Fum, I smell the blood of an ENGLISHMAN"