In a bowl, mix the graham wafers and butter. Use enough graham wafers to line 13 x 9 glass pan. Bake wafers for about 10 minutes at 350°F. Set aside to cool. In a large pot, cook strawberries, sugar and jello until the berries are cooked down. Once the wafers have cooled, pour berry mixture over top and cover entire area. Place pan in the fridge. Once cold, you can cut and serve. Add whipped cream to top of each portion.