Tray lining refers to the process of covering a tray or platter with a protective layer, typically made of paper or cloth, before placing food or other items on it. This not only adds a decorative touch to the presentation of the tray, but also serves to prevent the tray from getting dirty or damaged. Tray lining is commonly used in restaurants, catering events, and home entertaining to elevate the overall appearance of the serving tray and ensure a clean and hygienic surface for food. It can also be used to add a pop of color or pattern to the table setting, making it a versatile and practical technique for any occasion.