Slice the cake from end to end (not side to side) into 8 long slices (about 1/4 inch thick).
Put 4 slices of the loaf cake on the bottom of a 9-by-13-inch baking dish. Spread half of the ice cream on top of the cake to form a smooth layer. Spread half of the Strawberry Sauce over the ice cream layer. Sprinkle the chocolate cereal over the sauce layer. Put the remaining pound cake slices over the cereal. Spread the remaining ice cream on top of the cake layer to form a smooth layer. Spread the remaining sauce over the ice cream layer. Sprinkling with the grated white chocolate. Cover with foil and freeze until the ice cream has hardened, 6 hours up to overnight.
In a medium pot, combine the strawberry preserves and lemon juice and gently mix. Bring to a simmer over medium-low heat, add half of the strawberries and simmer for 4 to 5 minutes. Let cool until warm. Add the remaining strawberries and gently fold to coat.