Abstract: An auxiliary furniture tray system for hidden installation in conventional furniture can be quickly moved between a hidden, rest position and an adjustable, deployable orientation. The system is mounted within the arm or arm rest. The frame comprises a pair of spaced apart, rectangular sidewalls secured together by an upper corner strut and a lower, spaced apart pivot strut extending between the top, inside of the frame. A lower, transverse mounting strut is fastened to interior portions of the furniture frame. A rigid tray slidably associated with the frame is displaceable between a vertically oriented rest position, and a substantially withdrawn horizontally oriented service position. Pairs of guide tracks attached to the opposite sidewalls define a slot for guiding and aligning the tray during vertical movements.