What is the function of a baking tray?

A baking tray is designed to provide a flat, stable surface for baking various foods, such as cookies, pastries, and sheet cakes. It conducts heat evenly, ensuring uniform cooking and browning. The tray often has low sides to allow for easy access and ventilation, making it ideal for both baking and roasting. Additionally, it can help catch drips and spills, keeping the oven clean.