Will the freely circulating iron ions causing oxidative damage during COVID-19 infections be scavenged effectively by high concentrations of vitamin C, and can that also be dealt with effectively by drinking hydrogen suffused water at regular intervals?

Both will be highly effective in countering the scourge of the free iron ions that will otherwise contribute to tissue injury. So both would be beneficial and a blessing and would have the additional benefit of reining in immune attack consequences on the body.