The Black and Decker T03210SSD toaster oven you mentioned is a compact toaster oven with a top and bottom heating element. When you place something like toast or any other food item on a baking tray inside this toaster oven, both sides of the food will be exposed to heat, ensuring even cooking.
Toasters and toaster ovens are designed to cook food from both sides simultaneously. The heating elements on the top and bottom of the oven produce heat that surrounds the food, allowing it to cook from the top and bottom at the same time. This results in evenly toasted or cooked food on both sides.
When you put toast on the baking tray in your Black and Decker toaster oven, both sides of the bread will be toasted to your desired level, provided you set the appropriate temperature and time settings. If you want the toast to be more toasted on one side than the other, you might have to physically flip the bread midway through the toasting process. However, for most toasting purposes, flipping is not necessary, and the toaster oven should provide even toasting on both sides of the bread.