FIG. 1 is a top perspective view of a combined keyboard tray and wrist rest showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view of the combined keyboard tray and wrist rest shown in a raised, extended position, the opposite side view being a mirror image thereof;

FIG. 4 is a side elevational view of the combined keyboard tray and wrist rest shown in a lower, extended position;

FIG. 5 is a side elevational view of the combined keyboard tray and wrist rest shown in a lower, retracted position;

FIG. 6 is a front elevational view of the combined keyboard tray and wrist rest;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken line drawing of a support mount on all views is for environmental purposes only and forms no part of the claimed design.