[avr-gcc-list] How Hot does a 62256-15 SRAM Get?

[User Tomdean]

I have a Packet Whacker.  I want to mount it on a PCB OVER a 62256-15
for use with a AT8585 ATmega8515 running at 16 mHz.  The ventilation
will be natural, but, not installed in a box.  Maybe in a 2 ft^2
space.

Am I going to have heat problems?  I have the data sheet, but, I can't
figure this out.

Any ideas?

tomdean