Final answer:
Amelia Earhart was asked by Wilmer Stultz to join him on a flight to Europe in 1928, because her participation as a woman aviator would capitalize on the excitement surrounding air travel following Charles Lindbergh's celebrated transatlantic flight.
Step-by-step explanation:
Wilmer Stultz invited Amelia Earhart to accompany him on a transatlantic flight in 1928 due to the public and media interest generated by Charles Lindbergh's pioneering solo flight across the Atlantic the year before. In the wake of Lindbergh's success, which was marked by a lavish ticker-tape parade and his becoming an emblem of the burgeoning aviation industry, there was significant enthusiasm for further triumphs in air travel.
Commercial and promotional interests in aviation were at a high, and including a woman in a transatlantic flight was both a groundbreaking endeavor and a sensational story likely to capture public imagination, much as Lindbergh's flight had.
Earhart's role as a female aviator was not only novel; it also offered the prospect of appealing to an even wider audience, embodying progress and the spirit of adventure in the Roaring Twenties.