I'd like to use a European appliance (5A 208-240V 50/60Hz 900W) with a step-up transformer such as this one.
It seems to me that a CEE 7/7 plug plugged into this all-female receptacle would not be grounded, since there would be no contact to either the earthing clips or to the female contact for an earthing pin that are on the plug.
Q1: Is it dangerous to use this set-up as is?
Q2: Would it be safer for the transformer to be plugged into a GFCI outlet?
Q3: Could I obtain or make a two-sided male adapter with earthing pins on both sides that would ground the appliance through the transformer?
Q5: Could I ground the appliance some other way?
This is in an apartment, so electrical modifications to the source outlets or building wiring are not an option.