Trays are flat, shallow containers used to hold or carry items. They come in various materials, such as plastic, metal, or wood, and can be found in different shapes and sizes. Trays are commonly used in kitchens, restaurants, and for serving food and drinks. They help organize items and make it easier to transport them from one place to another. In addition to food service, trays are also used for organizing items in offices or homes. For example, a desk tray can hold papers and supplies, while a serving tray can be used for carrying dishes during a meal. Their versatility makes trays useful in many settings.