Explain the statute in the Council of Trent where it says clearly that there is no salvation outside of the RCC.
It doesn't say that. It say "the church", not "Roman Catholic Church." In the same sense that Protestants refer to "the Holy Catholic Church" if they follow the Nicene Creed, it doesn't mean that they are talking about a particular denomination.
The Second Vatican Council declared that the Christian communities that are not in full communion, but only in "partial communion"[38] with the Catholic Church, "though we believe them to be deficient in some respects, have been by no means deprived of significance and importance in the mystery of salvation. For the Spirit of Christ has not refrained from using them as means of salvation which derive their efficacy from the very fullness of grace and truth entrusted to the Church". It explained that "some and even very many of the significant elements and endowments which together go to build up and give life to the Church itself, can exist outside the visible boundaries of the Catholic Church: the written word of God; the life of grace; faith, hope and charity, with the other interior gifts of the Holy Spirit, and visible elements too. All of these, which come from Christ and lead back to Christ, belong by right to the one Church of Christ."
Unitatis redintegratio