Objective: How to clean tserling silver.

Which of the following solutions is more sound in terms of naive physics reasoning?

Options are:
1). Soak the tarnished piece in a solution of 1/2 cup white vinegar and 2 tbsp. baking soda for two to three hours, then rinse and dry;
2). Soak the tarnished piece in a solution of 1/2 cup white vinegar and 2 tbsp. baking powder for two to three hours, then rinse and dry;
1).