Daniela wants to bake a small peach cobbler. The recipe that she found in a magazine states that 1/2 cup of unsalted butter, 1 cup of all-purpose flour, 2 cups of sugar, 1 cup of milk and 4 cups of peach slices will yield 10 servings. lf Daniela wants to bake a small peach cobbler to feed 5 people, then how much unsalted butter will she use?