Almost certainly not, and trying could damage both the generator and your AC. This is a common mismatch.
Your Wen 56203i outputs 1600 running watts and 2000 surge watts. A typical RV air conditioner requires about 1500-1800 running watts and a surge of 2500+ watts to start the compressor. You'd exceed the generator's capacity the moment the AC tries to kick on.
Check your RV AC's nameplate for its specific amp and watt rating. Use the formula: Amps x 120 Volts = Watts. Even if the running watts are under 1600, the starting surge will likely trip the overload protection.
What you can power: This generator is designed for sensitive electronics and smaller loads. It's perfect for phones, tablets, laptops, LED lights, a small TV, or a fridge. For an RV AC, you'd need a larger generator, or you could use two Wen 2000-watt models connected with a WEN 56421 Parallel Connection Kit to double your available power.
Heads up: Always add up the wattage of everything you want to run simultaneously before plugging into any generator.