The ornamental design for a tripleservertray, as shown, and described.
FIG. 1 is a top plan view of a triple server tray showing my new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is an elevational view of the triple server tray shown in FIG. 1, as
viewed along any one of the three directional arrows depicted in FIG. 1;
and;
FIG. 4 is a sectional view as taken along line 4--4 in FIG. 1.