Count of multiple face areas is any way how to display total faces area of selected faces in Blender 2.8? Manually counting isnt possible...I want count 1000 and more faces...
This worked for me in Blender 2.82.  Result is shown in System Console window.

import bpy

bpy.context.object.update_from_editmode() 
#applies any pending edits.
#allows script to be run from within edit mode

the_area = 0
for poly in bpy.context.object.data.polygons:
    if poly.select:
        the_area += poly.area

print('final area total')
print(the_area)