Meaning of TRAY in English
[noun] [C] - a flat object, usually with raised edges, used for carrying food and drinks, or (esp. UK) a similar but deeper object used in offices etc. for keeping papers inShe was carrying a tray of drinks.I don't know where I put that article - it must be in the bottom of my tray.See also ashtray.
Cambridge English vocab. Кембриджский английский словарь. 2012