He was admitted to the New York bar in 1876, after which he made a specialty of commercial and insolvency laws as well as the trial of jury cases.
[6] In 1901, he was a member of a committee Tammany Hall appointed to investigate social vice in New York.
[7] Platzek became president of both Kesher Shel Barzel and the Young Men's Hebrew Association in 1883.
The funeral was attended by his former political associates, including former United States Senator James A. O'Gorman, former Municipal Court Justice David L. Weil, the Jewish Federation of Philanthropic Organizations head Sol M. Stroock, and New York Supreme Court Justice Alfred Frankenthaler.
[10] He was buried in Oakdale Cemetery in Wilmington, North Carolina, with Rabbi Frederick I. Pypins officiated a funeral service conducted there.